Rotary cultivator



May 13, 1947.

J. v. scHu G ROTARY CULTIVATOR 4 Sheets-Sheet 1 I Fil ed Dec. 25, 1945 Inventor B Md ROTARY CULTIVATOR 4 Sheets-Sheet 2 Filed Dec. 23, 1943 I nven'tar o B; @Mm

May 13, 1947. v, HUG 2,420,500

ROTARY CULTIVA'II'OR Filed Dec. 23, 1943 4- Sheets-:Sheet 3 Inventor c /oylv away By QQ ZSMW May 13, 1947. J. v. SCHUG ROTARY CULTIVATOR Filed Dec. 25, 1943 4 Sheets-Sheet 4 and flaws; ,3 Me

Patented May 13, 1947 TED STATES PATENT or F ICE ROTARY CULTIVATOR John V. Schug, Paragould, Ark.

Application December 23, 1943, Serial No. 515,410

2 Claims.

The presentinvention appertains to newiand useful improvementsin nultivators of the rotary type.

important .objectof the invention. is to .provide a cultivator having rotary cultivator units operating both transversely and longitudinally of the rows being cultivated.

Another important object of the invention is to provide a rotary type cultivator which employs rotary elements which dig at the roots of the growths to be eliminated, to the end that many types of weed growths will be permanently destroyed.

Still another important object of the invention is to provide a cultivator having both longitudinal and transverse cultivating elements and wherein drive means is employed for positively driving these elements in a sure acting and substantially foolproof manner.

Other objects and advantages of the invention will become apparent to the reader of the following description.

In the drawings- Figure 1 represents a side elevational view of the cultivator.

Figure 2 is a top plan view.

Figure 3 is an enlarged sectional view taken substantially on the line 3-3 of Figure 1.

Figure 4 is a fragmentary sectional view showing one of the blocker type cultivator units.

Figure 5 is a fragmentary sectional view showing a modification of the blocker type unit disclosed in Figure 4;

Figure 6 is a side elevational view of another form of cultivator wheel.

Figure 7 is a fragmentary detailed sectional view of the gear box.

Referring to the drawings wherein like numerals designate like parts, it can be seen that numeral 5 denotes a rectangular-shaped frame having side members a, a and end members I), b. Situated under the frame 5 is a fram 6 which has side members 0, c and end members d. \A cross member I bridges the side members 0, 0. Link members 8 support the forward end of the frame 5, while the rear end of the frame is pivotally connected as at 9 to the lower end of a lever H], which has a detent ll engageable with a quadrant gear I2. Obviously, by actuating the lever l and setting the detent at the desired position on the gear [2, the elevation of the frame 6 can be adjusted.

A shaft I3 is disposed through suitable bearings M on the frame and the shaft I3 is equipped with wheels l5 suitably secured thereto.

.A shaft 19 whichis journaled through theiside members of the frame 6 carries cultivator units 10, preferably four in-number as shown in Figsure 2.

Theushaft 119 extends through a.-gear-bcx:.-and has beveled gears 22 thereon and within the box meshing with a bevel gear 23 carried by a counter-shaft 24. This counter-shaft 24 extends longitudinally of the frame 6 and at its forward end is equipped with a cultivator unit generally referred to by numeral 25, It can be seen that the forward end of the shaft 24 is journaled in the cross member 21.

The drive means for the device comprises the shaft [3 which has a bevel gear I 6 driving a gear l'la on a shaft I! which is connected by a universal joint [8 to a shaft lBb carrying a bevel gear l9a which meshes with a bevel gear 20a on a cultivato carrying shaft 2la. The universal joint it! allows for flexibility when the frame 6 is adjusted.

A form of cultivator shown in Figure 4 is used for blocking out cotton and this consists of a disk 28 for use on the shaft 24, this disk 28 having arms 29, 29 secured at opposite sides thereof and each provided with hoe-like blades 30 at the outer end thereof.

Figure 5 shows a slightly modified form of blocker, this consisting of a. disk 28a, more than two arms 29a which as in the instance of the block shown in Figure 4 have hoe-like blades 3011 at their outer ends.

Figure 6 shows a cultivator unit which consists of a disk 3| having a plurality of flexible tines 32 radially disposed .therefrom and each provided with an oblique end portion 33.

Figures 1, 2 and 3 show another form of cultivator and this is a disk 34 to the opposite sides of which are secured cross members 35, the ends of which protrude beyond the periphery of the disk 34 and are slightly curved and tapered in opposite directions as at 36, 31 (see Figure 1). This form of cultivator unit serves to jerk or yank out grass and other foreign growths by their roots.

It can be seen that in the form of the invention disclosed, a direct drive between the axle shaft I3 and the cultivating unit is provided.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new is:

1. A cultivator comprising a frame, a suspended frame pivotally secured under the first-mentioned frame, means for adjusting the pivotal relation of said suspended frame, cultivator units operative both longitudinally and transversely of crop rows, wheeled means for the first-mentioned frame including a shaft, a transverse shaft on which certain of the cultivator elements are mounted, drive means between the shafts, said drive means including a third shaft having one end geared to one of said first mentioned shafts, a universal connection at the opposite end of said third shaft, and gear means between the universal connection and the other of said mentioned shafts.

2. A cultivator comprising a frame, an axle shaft, wheels secured to the axle shaft, a 1ongitudinally disposed shaft in the frame, a rotary cultivator unit carried by the longitudinal shaft, a. transverse shaft in the frame, rotary cultivator units on the transverse shaft, gear means between the transverse shaft and the longitudinal shaft and drive means between the axle shaft and said transverse shaft and said longitudinal shaft, said drive means consisting of a block through which the longitudinal shaft is journaled, said transverse shaft being divided into a pair of sections the inner ends of which are journaled in side portions of the block, gear means between each of the transverse shaft sections and the longitudinal shaft, a shaft connection extending from the longitudinal shaft and gear means between the axle shaft and the shaft extension.

JOHN V. SCHUG.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 147,992 Soniat Feb. 24, 1874 1,751,682 Clark Mar. 25, 1930 1,880,565 Schaeffers Nov. 3, 1931 1,840,810 Fuller Jan. 12, 1932 96,562 Draughton Nov. 9, 1869 1,425,035 Mottier Aug. 8, 1922 

